body, ul, ol, li, h1, h2, h3, input {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
  box-sizing: border-box;
}

body, html {
  display: flex;
  flex-direction: column;
  height: 100%;
}

h1 {
  color: red;
}
